Malware

MSIL.Crypt.4 removal guide

Malware Removal

The MSIL.Crypt.4 is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

GridinSoft Anti-Malware

Gridinsoft Anti-Malware

Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
6-day free trial available.

What MSIL.Crypt.4 virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Creates RWX memory
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • A process created a hidden window
  • The binary likely contains encrypted or compressed data.
  • Uses Windows utilities for basic functionality
  • Attempts to delete volume shadow copies
  • Executed a process and injected code into it, probably while unpacking
  • Modifies boot configuration settings
  • Installs itself for autorun at Windows startup
  • Exhibits possible ransomware file modification behavior
  • Writes a potential ransom message to disk
  • Likely virus infection of existing system binary
  • Anomalous binary characteristics
  • Uses suspicious command line tools or Windows utilities

How to determine MSIL.Crypt.4?


File Info:

crc32: B9F25CDA
md5: a652958be3c4fd8eea634539bdf1ef4e
name: A652958BE3C4FD8EEA634539BDF1EF4E.mlw
sha1: 13e11013780c3acef14d6b4e0d71ff606ec9c630
sha256: da1724cfdf074b38808ccfb2b89ed21ffebaadeaa8b2d647c76cc6a0a61ace03
sha512: cb7d56123133dc499aafd1f1e651a33360f816418b72ef9231b5814b964cf7158c3352b4b5d18023402242a318292f2d689a97aa520ce9ea6aa591e458d4decf
ssdeep: 6144:FXupNGWUM+4PqjJY9c2HK669EdB1Mda7kaM9QNFHPzW:qjv+W9C669EH60oaMOC
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

0: [No Data]

MSIL.Crypt.4 also known as:

K7AntiVirusTrojan ( 0050b3cb1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.11958
MicroWorld-eScanGen:Variant.MSIL.Crypt.4
ALYacTrojan.Ransom.BTCWare
CylanceUnsafe
ZillyaTrojan.Filecoder.Win32.7247
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
K7GWTrojan ( 0050b3cb1 )
Cybereasonmalicious.be3c4f
SymantecRansom.BTCware
ESET-NOD32Win32/Filecoder.BTCWare.E
APEXMalicious
AvastWin32:Malware-gen
CynetMalicious (score: 100)
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Variant.MSIL.Crypt.4
NANO-AntivirusTrojan.Win32.FileCoder.eqlqxl
ViRobotTrojan.Win32.S.Agent.335872.OY
TencentWin32.Trojan.Filecoder.Llqo
Ad-AwareGen:Variant.MSIL.Crypt.4
SophosMal/Generic-S
ComodoMalware@#3eo6bcqnqvrov
BitDefenderThetaGen:NN.ZemsilF.34670.uuW@aKvMu6gi
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionRansomware-GCM!A652958BE3C4
FireEyeGeneric.mg.a652958be3c4fd8e
EmsisoftGen:Variant.MSIL.Crypt.4 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Generic.ebpqq
WebrootW32.Trojan.GenKD
AviraHEUR/AGEN.1123677
eGambitUnsafe.AI_Score_99%
MicrosoftTrojan:Win32/Skeeyah.A!rfn
ArcabitTrojan.MSIL.Crypt.4
GDataMSIL.Trojan-Ransom.Crysis.A
AhnLab-V3Trojan/Win32.Generic.C2016790
McAfeeRansomware-GCM!A652958BE3C4
MAXmalware (ai score=100)
MalwarebytesMachineLearning/Anomalous.100%
PandaTrj/CI.A
TrendMicro-HouseCallRansom_BTCWARE.F117FT
YandexTrojan.GenAsa!iFCjemK7+wU
IkarusTrojan.Win32.Filecoder
FortinetMSIL/Injector.PRZ!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Generic.HwMAEpsA

How to remove MSIL.Crypt.4?

MSIL.Crypt.4 removal tool
  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.

About the author

Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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